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Income taxes Income taxes - Provision for Income Taxes (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2014
Current provision: |  |  |
Federal | $ 69,025 | $ 74,050 | $ 55,656
State and local | 15,595 | 15,332 | 12,003
Foreign | 15,536 | 9,581 | 11,416
Total current provision | 100,156 | 98,963 | 79,075
Deferred tax expense (benefit): |  |  |
Federal | 7,778 | 2,233 | 1,750
State and local | 902 | 403 | 181
Foreign | (3,028) | (1,829) | 967
Total deferred tax expense (benefit) | 5,652 | 807 | 2,898
Provision for income taxes | $ 105,808 | $ 99,770 | $ 81,973

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